Real Numbers Te...

Which of the following is an irrational number?

Let $$x=\dfrac { p }{ q } $$ be a rational number, such that the prime factorization of $$q$$ is of the form $$2^n 5^m$$, where $$n, m$$ are non-negative integers. Then $$x$$ has a decimal expansion which terminates.

Which of the following will have a terminating decimal expansion?

If $$p$$ is prime, then $$\sqrt{p}$$ is irrational. So 
$$\sqrt{7}$$ is:

The number of possible pairs of number, whose product is 5400 and the HCF is 30 is

According to Euclid's division algorithm, HCF of any two positive integers $$a$$ and $$b$$ with $$a > b$$ is obtained by applying Euclid's division lemma to $$a$$ and $$b$$ to find $$q$$ and $$r$$ such that $$a = bq + r$$, where $$r$$ must satisfy

The decimal representation of $$\dfrac {93}{1500}$$ will be:

The HCF of $$256,442$$ and $$940$$ is

The rational number which can be expressed as a terminating decimal is:

Classify the following numbers as rational or irrational : $$2-\sqrt{5}$$